Vocollect BT-901 Talkman A700 Compatible Battery 3.7V

Vocollect Talkman A700 Series — 3.7V Li-ion Replacement Battery (BT-901)

This is a 3.7V Li-ion battery rated at 2500mAh (9.25Wh), built to replace the OEM BT-901 pack. It fits the Vocollect Talkman A700, A710, A720, and A730 voice-directed picking terminals used in warehouse and distribution environments. The cell and protection circuit match the original pack dimensions and connector pinout.

• Talkman A700 series compatibility: The A700, A710, A720, and A730 all run on the same 3.7V rail and use the same BT-901 form factor. The BMS handshake protocol and connector locking tab are shared across the series, so one replacement pack covers the full lineup.
• Bench tested on actual hardware: We cycled this pack on a Talkman A700 unit through repeated scan-and-transmit bursts. The BMS held stable under combined radio polling and scan trigger inrush without tripping into protective cutoff.
• First-shift prep for voice-picking terminals: After installing a new pack, seat the terminal in its charging cradle and run a full charge cycle before the shift starts. The scan trigger draws its highest inrush current when the cell is near minimum, and a fully charged cell prevents a false BMS trip during the first pick sequence of the day.

Cradle showing a charging error on a new BT-901 pack

A new pack can trigger a charging error on the Talkman dock when contact resistance at the battery terminals is too high for the dock to initiate a charge handshake. This happens when the gold-plated contacts on the battery or cradle have oxidation or shipping residue on them. Wipe the battery contacts and the cradle contacts with a dry lint-free cloth, then reseat the pack firmly until it clicks. The dock should clear the error and begin charging within 30 seconds.

Scanner losing wireless connection during a rapid scan burst

During a fast scan sequence, the terminal draws current simultaneously from the scan trigger and the wireless radio transmitting each scan result. This combined inrush can cause a brief voltage sag that drops below the radio module's minimum operating threshold, dropping the connection. The BT-901's protection circuit is rated to handle this dual-load spike, but the effect is most pronounced when the cell is below 3.5V. Keep the pack above that threshold — dock the terminal when the battery indicator shows one bar rather than waiting for a low-battery shutdown.